Bug fixes for SSD1306

[hackapet/Adafruit_Blinka_Displayio.git] / displayio / _i2cdisplay.py

diff --git a/displayio/_i2cdisplay.py b/displayio/_i2cdisplay.py
index 421fd105c7d3024df692cd688b6d4deddc05e886..e37eb8a659be5b584b28e71777f7b7131b571426 100644 (file)
--- a/displayio/_i2cdisplay.py
+++ b/displayio/_i2cdisplay.py
@@ -23,10 +23,10 @@ displayio for Blinka
 import time
 import busio
 import digitalio
 import time
 import busio
 import digitalio

-import _typing
+from circuitpython_typing import ReadableBuffer

 from ._constants import CHIP_SELECT_UNTOUCHED, DISPLAY_COMMAND
 
 from ._constants import CHIP_SELECT_UNTOUCHED, DISPLAY_COMMAND
 

-__version__ = "0.0.0-auto.0"
+__version__ = "0.0.0+auto.0"

 __repo__ = "https://github.com/adafruit/Adafruit_Blinka_displayio.git"
 
 
 __repo__ = "https://github.com/adafruit/Adafruit_Blinka_displayio.git"
 
 


@@ -53,6 +53,15 @@ class I2CDisplay:
         self._i2c = i2c_bus
         self._dev_addr = device_address
 
         self._i2c = i2c_bus
         self._dev_addr = device_address
 

+    def __new__(cls, *args, **kwargs):
+        from . import (  # pylint: disable=import-outside-toplevel, cyclic-import
+            allocate_display_bus,
+        )
+
+        display_bus_instance = super().__new__(cls)
+        allocate_display_bus(display_bus_instance)
+        return display_bus_instance
+

     def _release(self):
         self.reset()
         self._i2c.deinit()
     def _release(self):
         self.reset()
         self._i2c.deinit()


@@ -76,7 +85,7 @@ class I2CDisplay:
         while not self._i2c.try_lock():
             pass
 
         while not self._i2c.try_lock():
             pass
 

-    def send(self, command: int, data: _typing.ReadableBuffer) -> None:
+    def send(self, command: int, data: ReadableBuffer) -> None:

         """
         Sends the given command value followed by the full set of data. Display state,
         such as vertical scroll, set via ``send`` may or may not be reset once the code is
         """
         Sends the given command value followed by the full set of data. Display state,
         such as vertical scroll, set via ``send`` may or may not be reset once the code is


@@ -86,8 +95,12 @@ class I2CDisplay:
         self._send(DISPLAY_COMMAND, CHIP_SELECT_UNTOUCHED, bytes([command] + data))
         self._end_transaction()
 
         self._send(DISPLAY_COMMAND, CHIP_SELECT_UNTOUCHED, bytes([command] + data))
         self._end_transaction()
 

-    def _send(self, data_type: int, chip_select: int, data: _typing.ReadableBuffer):
-        # pylint: disable=unused-argument
+    def _send(
+        self,
+        data_type: int,
+        _chip_select: int,  # Chip select behavior
+        data: ReadableBuffer,
+    ):

         if data_type == DISPLAY_COMMAND:
             n = len(data)
             if n > 0:
         if data_type == DISPLAY_COMMAND:
             n = len(data)
             if n > 0:


@@ -96,12 +109,12 @@ class I2CDisplay:
                     command_bytes[2 * i] = 0x80
                     command_bytes[2 * i + 1] = data[i]
 
                     command_bytes[2 * i] = 0x80
                     command_bytes[2 * i + 1] = data[i]
 

-                self._i2c.writeto(self._dev_addr, buffer=command_bytes, stop=True)
+                self._i2c.writeto(self._dev_addr, buffer=command_bytes)

         else:
             data_bytes = bytearray(len(data) + 1)
             data_bytes[0] = 0x40
             data_bytes[1:] = data
         else:
             data_bytes = bytearray(len(data) + 1)
             data_bytes[0] = 0x40
             data_bytes[1:] = data

-            self._i2c.writeto(self._dev_addr, buffer=data_bytes, stop=True)
+            self._i2c.writeto(self._dev_addr, buffer=data_bytes)

 
     def _end_transaction(self) -> None:
         """Release the bus after sending data."""
 
     def _end_transaction(self) -> None:
         """Release the bus after sending data."""